Perhaps you want to use a different icon? I choose the musical notes because yeah that is sometimes used :)
But hey at least this works for me! We can also add another button type ('scene') to get rid of the `startswith` method but then I'll need to look into the Nextion editor I guess.
I only recently started using HomeAssistant, not sure if `button` is incorrect (and can be removed) but for me at least when I create a 'helper'/button it is of type `input_button`.